UnikoinGold..

They already have and have had an esports betting website for a while.. https://unikrn.com/ where you can place bets with FIAT.
They are currently working on their ICO, which is set to begin sometime this month.
Mark Cuban and Ashton Kutcher are among the backers... The founder is an avid gamer himself and used to work for Microsoft.

Shilling hard, I know but I really think in a market oversaturated with gaming-related/betting coin, this might be the one.. seeing as they already have the product itself.